public class Recursion {
    public static void main(String[] args) {
        T t1 = new T();
        t1.test(4);
        int ret = t1.factorial(5);
        System.out.println();
    }
}

class T {
    public void test(int n) {
        if (n > 2) {
            test(n - 1);
        } else {
            System.out.println("n=" + n);
        }
    }
    public int factorial(int n) {
        if (n == 1) {
            return 1;
        } else {
            return factorial(n - 1) * n;
        }
    }
}